Methods of fabricating hybrid glass core package structures including 3d locking mechanisms

An apparatus, comprising:

• a plurality of metal vias;
• and
• a layer of glass surrounding the metal vias, the layer of glass comprising:
• a first side and a second side opposite the first side, wherein the metal vias extend between the first side and the second side of the layer of glass;
• and
• an edge sidewall between the first side and the second side and defining a perimeter of the first side, the perimeter comprising four corners and the edge sidewall having a non-linear path from a first corner to a second corner of the four corners.

A method, comprising:

• receiving a glass core panel comprising a plurality of glass core units, each glass core unit having a rectangular shape, wherein the rectangular shape comprises four sides, wherein each of the four sides comprise a linear profile, and wherein each of the glass core units comprises a top surface and a bottom surface;
• forming a non-rectilinear pattern in each of the four sides of each of the glass core units, the non-rectilinear pattern extending in an x-y plane parallel to the top surface and the bottom surface;
• and
• singulating the glass core units from the glass core panel.